Then I realized that, Silicon Valley being Silicon Valley, it wouldn’t take long for new start-ups to appear, seizing the opportunity created by this latest social media currency, the papal indulgence.

I made a few phone calls to my VC friends and compiled this list of start-ups jumping into the tweet-for-indulgence market before the incense has drifted away.

Indulgio

Founded by a couple of Stanford grads, this start-up is addressing an obvious problem with indulgences: metrics.

“We want to be your mobile dashboard for measuring indulgences,” says Rafe Lucatelli, founder and CEO. “People are following the Pope, but they’re always on the go. They’ve got their smartphones with them, so a mobile solution makes sense.”

Version 1.0, now in Beta, tracks indulgences and lets you post your purgatory status to Twitter, Facebook, and LinkedIn. “In line at Starbucks, followed 3 tweets and got 3 months closer to heaven! #Indulgences FTW!”

Version 2, scheduled for later this year, will measure sentiment in your social media feeds and estimate how many years you’re adding to purgatory through hateful, lustful, or slothful behavior.

“Let’s face it, you’re not just always drawing the balance of time in purgatory down,” says Lucatelli. “You’re also adding to it every day. We’re working with people who really understand sin—we’ve got an advisory board of local theologians along with a team of former Oracle engineers—to build a sin assessment engine that will give you a sense of just how long your wait in purgatory will be. My guess is, when you see the total, you’ll keep following the Pope’s tweets.”

Sin Qua Non

“Sin is the ultimate Big Data problem,” says Brent Hammacher, CEO of Sin Qua Non. “You’ve got billions of lives, a whole hierarchy of offenses—mortal sins, venial sins, white lies, press releases. There’s no way you’re going to track all that in a traditional SQL database. It makes what the NSA is trying to do look small. Which isn’t to say,” he adds, “that our friends in Virginia aren’t very interested in seeing what we’ve come up with.”

While start-ups like Indulgio focus on the individual consumer’s standing in the afterlife, Hammacher and his team are interested in moral corruption and redemption in aggregate. “Can you correlate expected time in purgatory with demographic data like zip codes and professions? We think you can,” says Hammacher. “There are some obvious spikes with cohorts like BMW drivers and members of Congress, but some of our other early projections have surprised us.”

An Indulgence Transformation algorithm might be able to wipe a lot of these slates clean. Again, Big Data and virtualization turn out to be key.

“If one user following one tweet on one device earns one indulgence, what could an entire server farm of virtual Twitter instances associated with a single Twitter account do for a sinful but proactive person in the twilight years of his life? Would certain high-net-worth individuals be interested in paying for this type of premier service? We know they would.”

Sinify

Details on this start-up are murky. Funding has come from some of the marquee names in the Valley, and development is taking place off shore.

One unnamed investor told me this: “Look, what the Pope has done here is push the reset button on the Reformation. It’s 1300 again, but now we’ve got Facebook. How might things go differently this time?”

For example?

“3D printing. In the Middle Ages, people collected relics, but there could only be one femur of John the Baptist. With 3D printing, there’s no limit to how many penitents can have the same femur. It’s like the multiplication of loaves but with much, much bigger upside. If Leo X were still around, I’d hire him as my VP of Sales.”

Critics

Not everyone in the Valley is thrilled by the Vatican’s new foray into social media. Hunkered down in a little apartment in Milpitas, a former Breitbart intern and blogger who goes only by MLuther has been posting pointed diatribes against the Tweet offer and other Vatican practices in a Tumblr he calls “95 Problems and a Tweet Ain’t One.” On bulletin boards, he’s been flamed.